Openwork knitting-machine.



, PATENTED MAR. 5, 1907. R. W. SCOTT.

OPENWORK KNITTING MACHINE.

APPLICATION FILED 0021.4, 1906.

. 5 SHEETS-SHEET 1.

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N0. 846,431.- PATENTED MAR. 5, 1907.

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OPE'NWORK KNITTING MACHINE.

APPLICATION FILED OGT.4, 1306.

No. 846,431- PATENTBD MAR. 5, 1907. R. w. soon.

OPENWORK KNITTING MACHINE.

APPLICATION FILED oo:r.4,19os.

5 SHBBTSSHEEI 3.

No, 846,431. PATENTED MAR; 5, 1907.

R. w. soon.

OPBNWORK KNITTING MACHINE.

APPLICATION FILED 00114. 1906.

5 SHEETS-SHEET 5.

- UNITED STATES PATENT OFFICE.

Roma n" W. sooTT, or LEEDS POINT, NEW JERSEY, ASSIGNOR or T0 LOUIS 'N. D. WILLIAMS, or OGONTZ, PENNSYLVANI ONE-HALF OPENWOBK KNITTING-MACHINE.

Specification of Letters Patent.

Application filed October 4, 1906. Serial No. 337.437.

Patented March 5, 1907. I

To all whom it may concern:

Be it. known that I, ROBERT W. Scorr, a citizen of the United States, residing in Leeds I Point, Atlantic county, l lew Jersey, have invented certain Improvements in Openwork Krfitting-Msichines, of which the following is a specification.

\ This invention consists of an improvement in or modification of that forming the subject of my application, Serial No. 335,403,'filed September 20, 1906.

. My former invention related to a machine for forming eyelet-holes in knitted. webs by transferring certain sinker-Wale loops to adjoiningneedles; and the purpose of the pres ent invention is to sopconstruct such a machine as to permit any desireddiversity in the distribution of the eyelet-holes through out the knitted web. a

In the accompanying drawings, Figure 1 is' a vertical sectional view of sufficient of a circular-knitting machine to illustrate my present invention. Fig. 2 is an inverted plan view of the cams (fi/the dial-cam plate of such a machine. Fig. 3 is a view showing the cams of the cylinder cam-box developed in-a fiat plane. Figs/1, 5, and Bare views, on an enlarged scale, illustrating the method of ef- 1 fecting the transfer of the sinker-Wale loops to the adjoining needles. Figs. 7 to 12, inelusive, are views of the different forms of sinker-wale-loop-transfer devices employed in the machine shown in Fig. 1. Figs. 13 and 14 are vertical sectional views of arts of a circular-knitting machine of a iffercnt type from thatshownin 1, but also embodying my invention. Figs. 15, 16, and 17 are views of the difierent sinker-wale-looptransfer devices employed In said machine.

Fig. 18.is an inverted plan view of one of cams of the dial-cam plate of said mach ne. Fig. "19 isa view of one set of cams of the cylinder cam-box of the machine developed.

- inclined or beveled portions adj acent to their modified forms of transfer outer ends, whereby a sinker-Wale loop caught.

upon said outer end when the transfer-point l was partially projected could by a further projection of the point be displaced laterally into the path oi an' adjoiningmeedle, and when said needle was projected and entered the loop the retraction of the loop-carrying point effected the transfer of said loop to the needle. In the previous machine, however, no provision was made for any material variation in the distribution throughout the knitted web of the eyelet-holes formed by such transfer or" the sinker-Wale loops, the only approach to such idea being the use, in one type of machine illustrated in said livcation, of a'notched wheel which provl ed, on one rotation of the machine, for the transfor of loops in different sinker-walesfrom those whose loops were transferred on the previous rotation.

- My presentinvention aims at'much greater diversity in the distribution of the eyeletholes, and its essential feature consists in the use of a plurality of sets of transfer-points, each set operated by its own cam or combination of cams, whereby itis ossible to'pro- 'duce inthe knitted "web a wi e range of patcapabilities of my present invention being points as there are needles in the machine, with the result that the loops of each sinkerloops of every other sinker-Wale of the web' ,In practice, however, such an extreme application of my invention will seldom, itever, bev required. a

stationary bed-plate, upon which is fixedly mounted a cylinder 2'for the guidance of the various sets of transfer-points 3, saidcylinder being surrounded'by a cam-cylinder 4, which is secured to a bevel-wheel 5, rotatably' mounted upon the bed Fahd driven in any available manner, said cam-cylinder carrying the various cams whereby vertical recipfer-points 3. Mounted upon and rotating pending spindle 7, having at the lower. end a terns, due to the formation of the eyelet holes in said web, an extreme instance of the the employment of as many sets of transfen rocating movement is imparted'to the trans-- with the cam-cylinder 4 is an arch 6 with de-.

collar 8, upon which is supported a cylindries] din] Q, carrying the needles 10, where- I wale'can be controlledindependently of the In Fig. 1 of the drawing, 1 represents a by the knitted web is produced, this dial. being surmounted by a dial-cam cap 11, which is secured to the'spi-ndle 7 and rotates therewith, the dial 9 being locked to the cylinder 2 l in any available manner as, for instance, by means of engaging lugs 12 and 13 on these respective members of the machine-so that the dial is restrained from rotating with the spindle 7. The dial-cam cap H is provided on its underside with cams for effecting the desired radial reciprocation of the dial-needles, the latter having butts for engagement of the upper butts of all of the transferpoints and as many lower grooves 21 as there are different lengths or sets of transferpoints "in the machine, each groove receiving the lower butts ofits respective set of points.

The upper groove of the cam-cylinder has a projecting-cam 22 and retracting-cams 23 and'24, all operating in connection with appropriate guard-cams, and each of .the

grooves 21 has a swinging cam 25, which when raised, as shown by full lines in Fig. 3, will vertically project to a slight extent from their normal or rest position the set of transfer-points corresponding to said groove, or when depressed, as shown by dotted lines in Fig. 3, will fail to project the points from such normal or rest position; The relation of the cams of the-cam-c'yli'nder to the cams of the dial -cam cap will be understood on reference to-the lines a, b, e, (I,

g, h, i, and j in Figs. 2 and 3, the direction ol inovement of the camecylinder and dialcam cap being as indicated by the arrows in" said figures and the line 1) indicating the point at which the needles 1O engage the knitting-yarn from the yarn-guide 00. Supposing that the needles and transfer-points are fully retracted, the operation ofthe ma- "he transferpoints 3 are of different chine when the earns :25 occupy theirelea vatechpositionwill, as to each transfer-point,

be as follows:' The transfer-point will first he projected by itsc'am 25 untilits' outer end 3*:

occupies a position between adjoining nee-f dles as represented in Fig. 24', and the needles will then be projected by the cam l tlto rej ceive the yarn from the yarn guides a:. When the needles areretracted'by the cam'117 to en gage and draw-stitches of the knitting-yarn, 4 the int.er1nediate.sinkerwale loop will be engaged- 'andheld theiouter end 3* of-the transfer-point, and saidsinker-wa'le will then -.be slacken'ed' by the projection of the needles due to the action ofthe-cam 15, said needles leing then again retracted by the cam 18 to an extent sufficient to withdraw their hooks to a point just behind the hack oi the trans-- ler-point. as shown at the right-hand side of Fig. 1. The transfer-point is then projected by the action of the cam 22 upon its upper butt, and. this has the effect of bringing the diagonally-inclined member 3 of the transter-point into action uncut-he sinker-Wale loop previously deposited upon its outer member 3, thereby causing the lateral displacementof said loop, as well as a slight outward displacement of the same due to the action thereupon of the shoulder 3 formed at the base of the inclined portion 3* of the point, the parts being now in the relation to each other shown in Fig. 5.

The transfer-point remains in the projected position until the needle adjoining the same has by the action of the cam 16 been again projected, so as to enter the sinker-Wale loop which'has been displaced into the path of said'needle, as shown in Fig. 5, the transferpoint being then partially retracted by the action of the cam 23 of the cylinder upon the upper butt of said point in order to slacken the sinker wale loop and insure the laying of the same into the hook of the needle, the latter being then retracted by the actionof the cam 19 and the transfer-point being then withdrawn by the action of. the cam 24 upon its upper butt, so as to castthe sinker-Wale loop .onto the needle, as shown in Fig. 6'. When it is not desiredto transfer'the sinkerwale loopscontrolled by any particular set of transfer-points, the latter may be rendered inoperative'by depressing the corresponding cam 25, the result-being that said transferpoints will'not be projected at the point where the needles engage the knitting-yarn,

and conse uently the sinker-wales will be formedfbehmd said transfer-points instead of around the same, and the, subsequent projection and retraction of thetra-nsfer-points by the action of the cams 22, 23, and 24 upon their upper butts will have no effect, except,

perhaps, that'of causing them to act as webolders when the needles are cam 16 of the dial-cam plate.

. The product-ion of eyelet-holes in a knitted i projected by the 1 web presup oses not only the; formation 'of plain-wales etweentheeyelet-forming wales,

but also the formation of one or more regular courses of knitting between those in which} the sinker-Wale loops aretransferred in the manner before described;

. The formation of plain-wales between the eyelet-forming wales may be effected by so disposing or so operating the sets. of transferpointsor the ppints of each set that one or -more vneedles will-in each course of knitting; ,intervenebetweenthos'e' to which the sinker-- wale. loops are transferred, and-the formation of'oneor more regular courses of knitting between those in which thev sinker-wale loopsrho , 2 described .being lett ered, respectivcl 22 23324, and 25 and-thesam'e'rule being ob-* 3 5 to 19 the plain courses can be formed between 45 transfer-points having forked heads, as

5o machines for knittingribbed fabric by using Patent No. 368,429, dated "August- 16, 1887,

'6 D. Williams, No.491,91 1,FebruarylA, 1893.

are transferred may be effected in a single feed machine by dropping the cam 25, con-- trolling any particular set of transfer-points,

I for-one 'or more rotations ofthe-machinefl 5 after said. points have, effected a' transfer. i a In that typeofmachinexshown in Figs. '13

to- 19. the-conditionsarethe reverse of those 6' of the machine shown in Figs l to 3, the needles 10 being carried the .cylinder 2, io'the needle operatingiiclams1being. carried. by-

, the cam-4: li11der.4,the transfer-p0ints3 .be-' ing carrie .by the dial 9, andthe point-open ating-cams being carried by'the'dial-cani cap 11. In the-"machine shown there are three r5v [sets of'transfer-points and each point hasbut one projecting butt for the action of the cams, of whichTthree sets are'eniployed,.as shown.

, in Fig. 1.8; .the camsgcorrespondingto the cams 2 2, 23, 24, and 'of the machine first servedin thelettering of the needle actu-f I ating earn 7 shown 1 This corts'truction is ayailable in thecase' of amulti 2.5 feed machine having a dial and a dial-cam ca of relatively large diam leter which provi es sufiic'ient radial space for the locationv of the plurality. of sets 0G8iils employed; but .where any consideral' le riumberof sets oftransfer-points 'isdesire f the construction shown in Figs.-1,2,'and3 salways preferable, since there is practica'll "no limit to the height to Whichthe cylin er can be carried.

. In a machine of'the type shown in Figs. 31

the transfer courses either by adjusting the I cams 253-. to the inoperative position at one or more feeds or by providing transfer-cams at certain feeds only, plain work being roduced 6 at the remaining feeds. If it is esired to eiiect spreadingof the sinker-wale loops so as to engage an adjoining needle on-each side'of :the same, this can be readily effected by sub.-

stituting for -the transfer-points shown: other shown in Fig-20, or by combining two trans-- fer-points so that their diagonal portions d1- verge in opposite directions, as shown in Fig,

- .21, and the invention can also be applied to needles in both the cylinder and dial and all ternating the transfer-points with the nee- 'dles or groups of needles in the dial or cylinder, or both, suitable camsfor operating the. needles of thecylinder and dial in order to I causethein to knit being in such case provided both in thecam -cylinder and dial-cam". plate. ;As' a known means for imparting swinging'or back-and-fOrth movement of paritial rotation to a cam pivotally mounted upon the cylinder I may refer to-mv Letters and as a known means of swinging a'dialcam I may refer to the Letters Patent of L. N.

:holes in) the knitted Web, said sinker-wale- The g an-stamens which I have shown and described are free from any hook, latch, or other obstruction such as would form part of a ,transfenneedle ;and the sinker-wale "Qlo'ops can therefore be'cast from the points without difficulty and with m. the minimum amount, of reciprocating movement of the points. Consequently the use of st ch points s always preferred; although my inv tion in I its broader embodiments is notliihited to such use, butcontemplates the use. of trans. fer-needlesor'other transfer devices as well.. Iclaimi d 11. The combination, in a knitting-inachine, ofneedles, meansfor knitting there upon, and means for transferring sinker-Wale" loops .toladjoining needles to form eyeletholes in the knitted web, said sinker-waleloop transfer devices being disposed in independently-operable' sets.

2. =The"combination, in a knitting machine, of needles, meansfor knitting there-r upon, and means for transferring sinker-Wale loops-to adjoining needles to form eyelet-' loop transfer devices being disposed in Independently-operable sets, and cams ior operat 111g said transfer devicesihaving, for different sets of the same members adjustable to posi-' tion for causing the transfer devices to en- 9 5 gage" the sinker-Wale loops or' t-o position which will prevent such engagement.

3. The combination, in a knitting-Inachine, of needles, means for lmitting thereupon, and meansfor'transferring sinker-Wale loops ltd-adjoining needles to form eyelet holes in the knitted web, said transfer de vices Eyeing disposed in independently-operable sets and each set being-combinedwith a cam for moving its members into position for engaging the sinker-wales, the transfer devices of all of the, sets beingcombined with a singleset of cams for moving them to jtrans-' fer/position and then retracting'them' to v tion for casting their loops. r in 4, The combination, in a Iknitting} machine, of needles, means for knitting therei upon, and means for transferring sinker-wale loops to adjoining needles to form eyeletholes in the knitted web,'said transfer devices "in 5 being disposed in independently-operable sets and each set beingco'mbined with anad-I': justable camfor moving its members 'to'posn; tion for engaging the sinker-wales or permit- I ting them to remain in inoperative position, the transfer devices of all of the sets combined with a single set of cams for inov-a ingthem 'to transfer positionnnd ther'lfne tracting them to'position for castingiihcir; I loops. r45 5. The. combination, in a knitting-ma chine, of a cylinder and dial, needles .by the latter, means for. knitting upon said needles, and means for transferring sinkerwale loops to adjoining needles to form eye 13o;

let-holes in the knitted web, said transfer devices being disposed in independently-operable sets in the cylinder of the machine.

6. The combination, in a knitting-machine, of a'cylinder and dial, needles carried by the latter, means for knitting upon said needles, and means for transferring sinkerwale loops to adjoining needles to form eyelet-holes in the knitted web, said transfer devices being disposed in independently-operable sets in the cylinder of the machine, and having butts in superposed horizontal planes and each set of transfer devices having, in its respective horizontal plane, a cam for moving its members into position for engaging the sinker-wales. 1

7. The combination, in a knitting-machine, of a cylinder and dial, needles carried by the latter, means. for knitting upon said needles, and means for transferring sinkerwale loops to adjoining needles to form eyelet-holes in the knitted web, said transfer devices being disposed in independently-operable sets in the cylinder of the machine, and having butts in superposed horizontal planes and each set of transfer devices having, in its respective horizontal plane, a cam for moving its members into position for engaging the sinker-Wales, said cam being adjustable into such position that it will fail to effect such projection.

8. The combination, in a knitting-machine, of a cylinder and dial, needles carried by the latter, means ior knitting upon said needles, and means for transferring sinker- Wale loops to adjoining needles to form evelet-holes in the knitted web, said transfer devices being disposed in independently-operhaving butts in its own able sets in the cylinder of the machine and each device having two butts for being acted upon by-its operating-cams, all of the transfer deviceshaving butts in the same plane combined with cams for moving them to transfer position and ing position, and each set of transfer devices independent horizontal plane, and a cam for acting'upon said butts to project the transfer devices to position' for engaging the sinker-Wale loops.

9. The combination, in a knitting-ma chine,'of a cylinder and dial, needles carried by the latter, means'for knitting upon said needles, and means for transferring sinkerivale loops to adjoining needles to form eyelet-holes in the knitted web, said transfer devices being disposed in independently-operable sets in the cylinder of the machine and each device having two butts for being acted upon by its operating-cams, all of the transfer devices having but-ts in the same plane combined with cams for moving them to transfer position and retracting them to casting position, and each set of transfer devices having butts in its own independent horizontal plane, and a cam for acting upon said butts to project the transfer devices to position for engaging the sinker-Wale loops, said retracting them to. castlatter c'ain being adjustable to the inoperative position.

In testimonywhereof I have signed my nameto this specification in the presence of two subscribing witnesses.

ROBERT I SCOTT.

W'itnesses HAMILTON D. TURNER, KATE A. BEADLE. 

